问题
选择题
Every means _____ prevent the water from _____. [ ]
A. are used to; polluting
B. get used to; pollution
C. is used to; polluted
D. is used to; being polluted
答案
答案：D
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Every means _____ prevent the water from _____. [ ]
A. are used to; polluting
B. get used to; pollution
C. is used to; polluted
D. is used to; being polluted
答案：D